7. HIKING The graph relates temperature y (in degrees Fahrenheit) to altitude x
(in thousands of feet).
a. Find the slope and y-intercept.
b. Write an equation of the line.
c. What is the temperature at sea level?

a.  Find the slope and y-intercept.

(0,59)   (7,33.8)

x₁  y₂      x₂   y₂    b = 59 ⇒ The temperature is 59 ° F when altitude is 0 feet.

33.8 -59                   -25.2

      =   = -3/6=m ⇒ The temperature drops 3.6 degrees

7 - 0                               7                                     every 1,000 feet.

b. Write an equation of the line.

y = -3.6x + 59

c. What is the temperature at sea level?

59 °

⊂⊃⊂⊃ω

step-by-step explanation:

i hope this : )

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.